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The Single UNIX &reg; Specification, Version 2<br>
Copyright &copy; 1997 The Open Group

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<h4><a name = "tag_000_000_375">&nbsp;</a>NAME</h4><blockquote>
filter - disable use of certain terminal capabilities
</blockquote><h4><a name = "tag_000_000_376">&nbsp;</a>SYNOPSIS</h4><blockquote>
<pre><code>

#include &lt;<a href="curses.h.html">curses.h</a>&gt;

void filter(void);
</code>
</pre>
</blockquote><h4><a name = "tag_000_000_377">&nbsp;</a>DESCRIPTION</h4><blockquote>
The
<i>filter()</i>
function changes the algorithm for initialising terminal capabilities that
assume that the terminal has more than one line.  A subsequent call to
<i><a href="initscr.html">initscr()</a></i>
or
<i><a href="newterm.html">newterm()</a></i>
performs the following additional actions:
<ul>
<p>
<li>
Disable use of
<b>clear</b>,
<b>cud</b>,
<b>cud1</b>,
<b>cup</b>,
<b>cuu1</b>
and
<b>vpa</b>.
<p>
<li>
Set the value of the
<b>home</b>
string to the value of the
<b>cr</b>.
string
<p>
<li>
Set
<b>lines</b>
equal to 1.
<p>
</ul>
<p>
Any call to
<i>filter()</i>
must precede the call to
<i><a href="initscr.html">initscr()</a></i>
or
<i><a href="newterm.html">newterm()</a></i>.
</blockquote><h4><a name = "tag_000_000_378">&nbsp;</a>RETURN VALUE</h4><blockquote>
The
<i>filter()</i>
function does not return a value.
</blockquote><h4><a name = "tag_000_000_379">&nbsp;</a>ERRORS</h4><blockquote>
No errors are defined.
</blockquote><h4><a name = "tag_000_000_380">&nbsp;</a>SEE ALSO</h4><blockquote>
<xref href=caplist><a href="terminfo.html#tag_002_001_003">
Defined Capabilities
</a></xref>,
<i><a href="initscr.html">initscr()</a></i>,
<i><a href="curses.h.html">&lt;curses.h&gt;</a></i>.
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UNIX &reg; is a registered Trademark of The Open Group.<br>
Copyright &copy; 1997 The Open Group
<br> [ <a href="../index.html">Main Index</a> | <a href="../xshix.html">XSH</a> | <a href="../xcuix.html">XCU</a> | <a href="../xbdix.html">XBD</a> | <a href="../cursesix.html">XCURSES</a> | <a href="../xnsix.html">XNS</a> ]

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